Device for converting motion



(No Model.)

B. W. HAM-MON. DEVICE FOR CONVERTING MOTION.

No. 554,062. Patented Feb. 4, 1896.

UNITED STATES PATENT Fries.

EDIVIN IV. IIAMMON, OF DAVISVILLE, CALIFORNIA.

DEVICE FOR CONVERTING MOTION.

SPECIFICATION forming part of Letters Patent No. 554,062, dated February4, 1896. Application filed September 13, 1895. Serial No. 562,430. fNomodel.)

To all whom it may concern.-

Be it known that I, EDWIN W. l-IAMMON, a citizen of the United States,residing at Davisville, county of Yolo, State of California, haveinvented an Improvement in Devices for Converting Oscillatory intoContinuous Rotary Motion; and I hereby declare the following to be afull, clear, and exact description of the same. 7

My invention'relates to the general class of mechanisms or devices forconverting motion from one form into another, and its object is toconvert an oscillatory into a continuous rotary motion in the samedirection.

It may be applied to any use to which it is adapted, and is especiallyuseful in connection with the oscillatory motion of a vibratory engine,or such as are commonly known by the name of sector-shaped engines,whereby their motion is conveniently and economically converted into acontinuous rotary motion, and is adapted to be readily reversed.

I My invention consists in the novel construction and arrangement of theparts of the device which I shall now fully describe.

7 Referring to the accompanying drawings, Figure 1 is a perspective viewof my device. Fig. 2 is a horizontal section of same. Fig. 3 is an endview.

A is a shaft, to which an oscillatory motion may be supposed to beapplied from any suitable source, unnecessary herein to show. Firmlysecured upon the shaft is a large gear B having a bevel-face with teeth.

C is a shaft mounted horizontally and parallel with the plane ofrotation of the gear B. Loosely mounted upon the shaft C, one at eachend thereof, are bevel-pinions D, each of which meshes at opposite sideswith the gear B.

E are crank-arms, fast upon the shaft C.

F is a slide-rod, the ends of which slide within the extremities of thearms E and are adapted to enter sockets d in the bevel-pinions D.

Upon shaft C is a freely-slidable flange a, guided by suitable means inits movement so that it will not cramp, said means being here shown asthe pins cand brackets 0 The slide-rod F passes freely through thisflange. Springs G encircle the slide-rod F and lie between the flange cand suitable stops in the shape of buffers f upon the ends of saidslide-rod.

H is a rod extending in front of gear 13 and in the diametrical planethereof. It carries a clutch-shifter h in the shape of separated orspaced plates, which are adapted to engage the periphery or rim of theflange c. The extremities of rod H pass backwardly behind gear B and arepivoted at h to abearing I, so that said rod may move laterally over theface of gear B. Upon the face of said gear are stops 1) adapted to comein contact with rod II from opposite sides.

The bearing I, to which the ends of the rod II are secured, is a rockingone, pivoted upon a center at 1', whereby, by its movement through theoperation of a suitable lever, such as J, the upper portion of said rodmay be thrown sufficiently close to the face of the gear B to cause thestops 1) to come in contact with it, while the lower portion is by thesame movement thrown far enough away from the face of the gear 13 toallow the stops to pass by it without contact. A reverse movement of therocking bearing I causes the lower portion of the rod to be thrown intothe path of the stops, while the upper portion is thrown out of saidpath.

The operation of the device is as follows: WVhen the rocking bearing Iis so turned that the upper portion of rod H is in the path of movementof the stops 1), the gear B onbeing oscillated in one direction willcause one of said stops, by contact with the rodII, to force the wholerod over to one side, and said movement ofthe rod, through itsclutch-shifter 7L engaging the freely-sliding flange 0, will cause thelatter to move over to the same side, therebycondensing or compressingthe spring vGr on that side, which, bearing on the bufferstop f, willcause the slide-rod to move over in that direction, so that itsextremity will enter the socket d in the pinion D on that side. Now, assaid slide-rod is engaged with the pinion and is also engaged with thecrank-arm E of the shaft C, the return movement of the gear B will causethrough the engaged pinion a movement of the shaft C in a givendirection, while the other pinion is moving freely upon said shaft in areverse direction. This continues until the other stop I) of the gear Bcomes up into contact with the rod H from the other side, and therebymoves said rod back again, and this movement, through the clutch-shifterh, will slide the flange 0 over to the other side, causing it tocompress the spring G on that other side, and thereby, as soon as thesocket cl in the other pinion comes opposite to the slide-rod, the endof said sliderod will thereupon spring into said socket and thus becomeengaged with the other pinion, and this movement will free it of thefirst pinion. Thereupon the gear B, returning in the firstdirection,will cause, through the now engaged second pinion, a movementof the shaft G in the same direction in which it moved in the firstinstance, thereby continuing in the same direction the rotary motion ofsaid shaft. This will continue until the first stop I) again engages therod 11 and moves said rod over again for a repetition of the firstoperation.

In order to reverse the movement it is only necessary to rock thebearing I, so that the lower portion of the rod H will be brought intoaction, the upper portion being thereby thrown out of action.

The stop K on the back of gear B, Figs. 2 and 3, by coming in contactwith fixed stops L, positively limits the oscillation of said gear, andthus effects the accurate operation of the device independently of whatmay be a slightly-variable stroke of the engine. This is especially ofadvantage where the oscillatory movement is derived from such an engineas a sector shaped engine, where the oscillating piston is limited bycushioning on steam, and, therefore, may not have a stroke sufficientlyaccurate for the requirements of the converting mechanism. Thisnecessity for accuracy follows into the construction of the device withregard to the proportions and time of the engaging gear 13 and pinionsD, these being such that the alignment of the sockets cl in the twopinions must take place at the limits of the stroke or oscillation ofthe gear 13. To take place prior to this time would result in reversingthe motion.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is,

1. Means for converting oscillatory into continuous rotary motion,consisting of a drivinggear to which the oscillatory motion is initiallyimparted, independent pinions meshing at opposite sides of said gear andat right angles therewith, a driven shaft upon which said pinions areloosely mounted, and a means comprising a slide-rod having itsextremities adapted to alternately en gage the pinions and appliancesoperated by the oscillation of the gear, for alternately engaging anddisengaging said pinions from the pinion-shaft.

2. Means for converting oscillatory into continuous rotarymotion,consisting of a drivinggear to which the oscillatory motion is imparted,independent pinions meshing at opposite sides of said gear and at rightangles therewith, a driven shaft upon which said pinions are looselymounted, and a means operated by the oscillation of the gear foralternately engaging and disengaging said pinions from the shaft,consisting of crank-arms on the driven shaft, a slide-rod mountedbetween said crank-arms and having its extremities adapted toalternately en gage sockets in the pinions, and devices on theoscillating driving-gear for alternately operating said slide-rod.

3. Means for converting oscillatory into continuous rotary motion,consisting of a gear to which the oscillatory motion is imparted,independent pinions meshing at opposite sides of said gear and at rightangles therewith,

a shaft upon which said pinions are loosely mounted, and a means,operated by the oscillation of the gear, for alternately engaging anddisengaging said pinions from the shaft, consisting of crank-arms on theshaft, a sliderod mounted between said crank-arms and having itsextremities adapted to alternately engage sockets in the pinion, anddevices on the main gear for alternately operating said slide-rod,comprising a movable clutch-shifter on the face of the gear, stops onthe gear for alternately moving said clutch-shifter in oppositedirections, a slide-flange on the shaft with which the clutch-shifterengages and springs on the slide-rod adapted to be alternately operatedby the flange to project the slide-rod into its engagement with thepinions.

4. Means for converting oscillatoryinto continuous rotary motion,comprising a gear to which the oscillatory motion is imparted, pinionsmeshing with opposite sides of said gear and at right angles therewith,a shaft upon which said pinions are mounted loosely,crankarms fixed onthe shaft, a spring-controlled slide-rod mounted in said arms andadapted to engage sockets in the pinions, a slidable flange foralternately operating the springs to actuate the slide-rod alternately,a rod mounted in the diametrical plane of the face of the shaft 13 andpivoted so as to be moved from side to side, a clutch-shifter on saidrod for engaging the sliding flange, and oppositelylocated stops on thegear for alternately moving the rod.

5. Means for converting oscillatory into continuous rotary motion,comprising a gear to which the oscillatory motion is imparted, pinionsmeshing with opposite sides of said gear and at right angles therewith,a shaft upon which said pinions are mounted loosely, crank arms fixed onthe shaft, a spring-controlled sliderod mounted in said arms and adaptedto engage sockets in the pinions, a slidable flange for alternatelyoperating the springs to actuate the slide-rod alternately, a rodmounted in the diametrical plane of the face of the shaft B and pivotedso as to be moved from side to side, a clutch-shifter on said rod forengaging the sliding flange, oppositely-located stops on the gear formoving the rod alternately, and a rocking bearing to which the ICC rodmounted between said crank-arms and having its extremities adapted toalternately engage sockets in the pinions, devices on the gear foralternately operating said slide-rod, and stops for accurately andpositively limiting the stroke or oscillation of said gear.

In witness whereof I have hereunto set my hand.

EDWIN 'W. HAMMON. \Vitnesses:

S. H. NOURSE, JEssIE C. BRODIE.

